You did download the
GNS3 v0.8.3.1 all-in-one right?
Or the awesome new beta version
GNS3-0.8.4-RC2-all-in-one.exe?
And during the install, you will need to confirm any Windows UAC challenges or license agreements you may be challenged with, and when presented with the compatibility issue when WinPcap is installed, simply choose to
Run the program without getting help.Actually, I recommend the GNS3-0.8.4-RC2-all-in-one.exe - it has a few extra features especially designed to help Win 8 users
BTW - Read
topic1829.html
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RedNectarhttp://rednectar.net@rednectarchrisGNS3 WorkBench-a VMware image of Ubuntu with GNS3 and VPCS installed and a collection of exercises/labs